56305535220 has 144 divisors (see below), whose sum is σ = 192745163520. Its totient is φ = 13179129600.

The previous prime is 56305535213. The next prime is 56305535261. The reversal of 56305535220 is 2253550365.

56305535220 is a `hidden beast` number, since 5 + 6 + 30 + 553 + 52 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 432876 + ... + 547715.

It is an arithmetic number, because the mean of its divisors is an integer number (1338508080).

Almost surely, 2^56305535220 is an apocalyptic number.

It is an amenable number.

56305535220 is an abundant number, since it is smaller than the sum of its proper divisors (136439628300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56305535220 is a wasteful number, since it uses less digits than its factorization.

56305535220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980646 (or 980641 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 56305535220 in words is "fifty-six billion, three hundred five million, five hundred thirty-five thousand, two hundred twenty".